Improvement in shearing and clipping apparatus



gutem GEORGE TWIGG, OF BIRMINGHAM, ENGLAND. i

Letters Patent N 107,128, dated September 6, 1870. v

IMPROVEMENT IN SHEARING- AND CLIPPING- APPARATUS.

'.lfhe Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern:

Be it known that I, GEORGE Twice, of Birmingham, in the county of IlVarwick and Kingdom of England, manufacturer, a subject under the vcrown of GreatBlitain, have invented Improvements in Shearing and Clipping Apparatus `and I do hereby declare that the following is a full and exact description of my said invention, that is to say- My invention more particularly refers to the description of shearing 'or clipping apparatus used for shearing or clipping horses and other animals, or for similar or. other purposes for which such apparatus maybe applicable, such as clipping grass, and consisting of a pair of metal plates working upon each' other by means of leverage, the 'cutting-edges beingformed with a series of small blades or shears, and operating after the manner of scissors.

My improvements-,refer to Jthe arrangement and construction of the actuating or leverage parts of such apparatus, and have for their object greater facility and accuracy in working the cutters or shears, increased strength and rigidity of the moving parts, with less tendency for such parts to become loose in wear.

Referring to the drawing- Figure 1 is a front. view; and

Figure 2, an edge view of'one form of r'n y improved shearing or clipping apparatus.

Figures 3, 4,'and 5, showing detached portions of the same. l

a is a carrier-plate,- secured .to or forming part of thehandle, b, and provided witha strip of hard metal, a1, for the purposeef resisting the wear upon the parts.

b is the actuating or lever-handle, working upon the pin c, shown more clearly in iig. 3, and giving. a horizontal to-and-fro motion to thev inner cutter-plate, (l, which is pierced, as shown in iig. 4, at e, to receive the stud-button f, the part f of such stud-button it-4 ting into the slot g of the lever-handle b', by means of which the cutter-plate d will be moved a sutcient distance to the right or left, in the operation of shearing or clipping, such movement being regulated by -the carrier-plate a, being formed with a recessed part, a?, for the head ofthe lever-handle b' to work in, or the head of the lever-handle may work between suitable raised stop-pieces or blocks.

The back shearing-plate h is secured by screw-pins i to the carrier-plate a, andl is thus rigid with it. Fig. 5 is a view of the inner face of the backlcutter-plate lr, showing the screw-holes and studs k, fitting into corresponding recesses in the carrier-plate a, and thus increasingthe security of the parts.

l is-a groove, cnt upon the face of both the cutterplates, and formed to receive a'length of wire, l', or an angular bar of metal, which acts as a set-np, for the purpose of keeping the inner surfaces o f the small blades or shears in close contact with each other, and also, acting as a guide for insuring the parallelism of the cutter-plates during the operation of shearing or clipping, or, if preferred, the one cutter-plate may have a set-up formed upon, it to 'fit into a groove cut in the other shearing-plate.

Another form of my improved shearing or clipping apparatus is shown in front and edge views, Figures 6 and 7, Figures 8, 9, 10, and 11,'being detached views of parts of such apparatus. In this arrangement both the handles a and al work freely upon a center, b, with a scissors `joint and action.

Figs. 8 and 9 represent the inner face of the cutter o1' shearing-plates c and ll, which are formed with recessed parts e, and studs e', so as to receive the arms f of the handles c and a, iig. 10 showing the scissor joint and'center b, the arms f, and also a small spring, y', which will have a constant tendency to keep the handles extended.

, Figure 11 shows, in under side and edge views, a securing-bolt or bar, h, formed with projections and studs, h1 and h2, the projecting parts hl working inthe guide-slots i, of the top cutter-plate c, fig. S. The shearing-plates c and el aresecured by means of screwpins passing through the projections of the bolt or bar h at lt, and the back shearing-plate d at Z, the studs h2 of 'the securing-bolt or bar fitting into recesses, m, in the back-plate; or the connection of the shearingplates may be effected Aas shown in section, Figure 12, hy means oa T -piece, n, tted within suitably formed grooves in the shearing-plates, the securing of the part-s being etfectedby means of screws o.

Again, as shown in Figure 13, I connect the two leverhandles a and al at b, and attach the handle a to the back shearing-plate c, and the handle a1 to the top shearing-plate d, by means of screw-pins e, screwing into the plates, the handles working upon such pins, and imparting a horizontal,to-and-fro movement to the shearing-plates, the parallelism being maintained by means of the. set-up or guide f. I sometimes propose using with this description of shearing or clipping apparatus a carrier-plate, similar to a, iig. 1. I'n tig. 13 are shown the screw-holes, and studsfor attaching the same.

Or, as shown in Figure 14, I connect the handles a, al by means of a knuckle-joint at b, and attach the arm c of the handle a to the back shearing-plate d, and the arm e of the handle al to the front shearingplate f.

gis a connecting-bar for securin g the parts, by means of screw-pins h passing through slots inv the i-ont plate, and screwing into the back plate.l The front plate-f is shown detached at Figure 15.

i are the slots through which the screw-pins h pass.

.In working the lever-handle a the front plate f works to and fro by means of' the slots i, upon the screwpins h, in a. parallel plane. `Ezich plete is cut away, as shown at k, to admit of the workingof the arms c Aand e, upon the plates (Z und f. v The arrangementof shearing or clipping apparatus shown in figs. 13 and 14, may, if preterred, have the one-handle rigid with or formed as parl: of t-be buck shearing-plate, instead of both handles being free to nieve upon the serew-pins, as described.

.Having thus described the object and nature of my said nvention, .und the manner in which che sanne is t0 be cmriedinto eifect,

' v I claim, without confining myself to the precise details herein described and shown, the several parts of the various figures hereinafter enumerated, namely:

VVibn esses z WM. T; FOULKES, J. BHAME. 

